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Old 11-10-2009, 03:52 PM   #1
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Size of Wire & type of wire


I have a new detached garage 150 ft from the main box I want 220 & 110 underground (no conduit) type wire. I will run a small 220 air compressior and some 110 power tools. What size wire and type of wire?

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Old 11-10-2009, 04:04 PM   #2
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Size of Wire & type of wire


What does the compressor draw for amps?
Any AC or heat out there?
What size main panel do you have?
What other large electric draws do you have in the house ?

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Old 11-10-2009, 04:37 PM   #3
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Size of Wire & type of wire


You need to make that decision based on the current requirements of each circuit you will install. Also you should reconsider your intention of going with direct burial cable. If you go to all the trouble of digging a trench you might as well be put in conduit and if you oversize your conduit you can pull another circuit later when you buy some tool you never thought you would buy.
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Old 11-10-2009, 06:08 PM   #4
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Size of Wire & type of wire


Quote:
Originally Posted by trosenda View Post
If you go to all the trouble of digging a trench you might as well be put in conduit and if you oversize your conduit you can pull another circuit later when you buy some tool you never thought you would buy.
You can't pull more than one circuit to a detached building. If you need multiple circuits you must pull a large feeder and install a sub panel.
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Old 11-10-2009, 06:08 PM   #5
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Size of Wire & type of wire


Install 1" PVC conduit, 18" deep with 3 # 6 THWN wires (2 black hots, 1 white neutral) and 1 #10 green ground.

Install a sub panel at the garage, keep the neutral bus isolated from the enclosure, install a ground bus kit and run a #6 bare wire to two 1/2" x 8' ground rods spaced at least 6' apart.

Install a 2 pole 60 amp breaker at your main panel to feed the garage panel.
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Old 11-10-2009, 06:30 PM   #6
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Size of Wire & type of wire


Quote:
Originally Posted by 220/221 View Post
Install 1" PVC conduit, 18" deep with 3 # 6 THWN wires (2 black hots, 1 white neutral) and 1 #10 green ground.

Install a sub panel at the garage, keep the neutral bus isolated from the enclosure, install a ground bus kit and run a #6 bare wire to two 1/2" x 8' ground rods spaced at least 6' apart.

Install a 2 pole 60 amp breaker at your main panel to feed the garage panel.
YEAH, What he said
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Old 11-10-2009, 09:13 PM   #7
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Size of Wire & type of wire


220s advice is the best. It'll be easy, and provide all the power needed for a shop.

Rob

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